Science Education Supplies By Eisco

• 5 piece equal mass metal cylinder set. Set includes Zinc, Copper, Aluminum, Tin & Brass. The density of the metals in this set range from 2.7g/cm to 8.8g/cm?, giving learners a wide range of different values to study
• Excellent for physics classrooms. This set allows learners to explore the relationship between density & mass. Additionally, the cylinders can be used for specific gravity and specific heat experiments
• Set includes a complete instruction manual that gives a background on density, mass, specific gravity & specific heat and includes inquiry based student activities with capture sheets
• Due to the nature of raw metals, some oxidation or corrosion due to humidity and storage may occur. Simply scuff any oxidation off to make the item look brand new again
• Designed to be used in an educational setting and are not fabricated using ultra high precision machining. Expect tolerances in the +/- 5% range of any stated dimensions (although they are generally much tighter).

• Concave mirror
• 10cm diameter
• 10cm focal length
• High quality glass

• Materials included are: Aluminum, Brass, Copper, Steel
• 1.5\" length and 0.4\" (10mm) Diameter
• Intended for use with Density, Specific Gravity, Specific Heat experiments
• Where measurements are in both metric and imperial, the metric measurements are generally more accurate (the imperial are provided as a general reference).
• These are designed to be used in an educational setting and are not fabricated using ultra high precision machining. Expect tolerances in the +/- 5% range of any stated dimensions (although they are generally much tighter).

• Adjustable Iris Diaphragm made of quality black metal
• 3\" (75mm) diameter, maximum inner diameter of 1.25\" (30mm). 2.5\" rod, 5\" total length
• Used to control the amount of ambient light reaching a sensor to ensure effective imaging
• This optics instrument is perfect for any lab, professional, or home setting

• Made from glass plates, cemented together. Includes stopper.
• 50x50x50mm
• Hollow inside allows for a variety of optic experimentation
• Great for studying Snells Law of Refraction.

• DOUBLE CONCAVE || Highly polished, double concave lens
• SPHERICAL || Lens measures 3\" (75mm) in diameter
• 300MM FOCAL LENGTH || Diverging lens with a 500mm focal length
• OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with ground edges
• GREAT FOR PHYSICS CLASSROOMS || This optically true lens is excellent for physics classroom demonstrations in optics and light refraction

• PORPHYRITIC GRANITE | Granite forms slowly in shallow or evolved magma chambers, and is also commonly found as magmatic intrusions in the crust. The large crystals are indicative of a slow cooling rate, and make mineral identification simple
• GREAT FOR GEOLOGY CLASSROOMS | A must-have sample when discussing rock types, the rock cycle, and the formation, classification, and identification of igneous rocks. This set of twelve samples is excellent for group study and examination
• GEOLOGIST SELECTED | Each specimen is selected and hand processed by an actual geologist, ensuring each sample exhibits defining features
• LOCALLY PROCESSED | Our rock and mineral samples are sourced from a variety of locations around the world and are processed in Victor, NY
• INDIVIDUALLY PACKAGED & LABELED | Each specimen sample is packaged in a transparent bag, and is labeled & barcoded for easy identification

• Single, solid Lead density cube with hook and stamped with element, (Pb) for easy identification
• Measures 20mm cubed. Including the hook, the cube measures 1.5\" in height
• Excellent for physics classrooms. Density Cubes have a wide range of educational applications for all grade levels, including density investigation, specific heat and specific gravity exploration
• Due to the nature of raw metals, some oxidation or corrosion due to humidity and storage may occur. Simply scuff any oxidation off to make cube look brand new again
• Designed to be used in an educational setting and are not fabricated using ultra high precision machining. Expect tolerances in the +/- 5% range of any stated dimensions (although they are generally much tighter).

• This unit demonstrates the concept of a switch or interrupter with a circuit. Can be used inline with other components of Eisco Series PH1029
• Two 4 mm Terminals for banana plugs
• Base Measures 3.75\" (95.25 mm) x 2.75\" (69.85 mm) x 1.38\" (35 mm)
• CE Certification
• Power Source needed for operation. An economical Eisco power source is PH0971DCAC which is not included

• DOUBLE CONCAVE || Highly polished, double concave lens
• SPHERICAL || Lens measures 3\" (75mm) in diameter and is approximately 6mm thick
• 1000MM FOCAL LENGTH || Diverging lens with a 1000mm focal length
• OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with ground edges
• GREAT FOR PHYSICS CLASSROOMS || This optically true lens is excellent for physics classroom demonstrations in optics and light refraction

• This round double convex optical glass lens is designed for physics and educational uses.
• It is approximately 3\" (75mm) diameter and 8.5mm thick. Note, thickness varies as they are not designed to be consistent in that respect.
• Because of their educational use design, there may be minor imperfections that do not affect physical function.
• 250mm Focal Length

• DOUBLE CONCAVE || Highly polished, double concave lens
• SPHERICAL || Lens measures 3\" (75mm) in diameter and is approximately 9mm thick
• 250MM FOCAL LENGTH || Diverging lens with a 250mm focal length
• OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with ground edges
• GREAT FOR PHYSICS CLASSROOMS || This optically true lens is excellent for physics classroom demonstrations in optics and light refraction

• Spare 200g slotted mass
• Stainless steel
• 1.5\" outer diameter
• 3/16\" opening
• 4/16\" interior diameter

• Glass Prism
• Right Angled
• 25mm Size
• Non-optically worked with polished faces, edges slightly bevelled.

• 90mm (3.5\") Semi Circular Glass Block
• 15mm thick
• Perfect for refraction and light experiments